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https://www.readbyqxmd.com/read/29667847/cd47-is-a-novel-potent-immunotherapy-target-in-human-malignancies-current-studies-and-future-promises
#1
Bing Tong, Mengzhao Wang
Recently, many immunosuppressive checkpoints such as PD-L1, CTLA-4 and CD47, were identified in succession and serve as potential immunotherapy targets in human cancers. Among them, CD47, a 'marker-of-self' protein that is overexpressed broadly across tumor types, is emerging as a novel potent macrophage immune checkpoint for cancer immunotherapy. In this review, we highlight the prominent role of CD47 as a 'don't-eat-me' signal that inhibits macrophage phagocytosis for immune evasion of a tumor and presents the opportunities and challenges for CD47 inhibitors both as monotherapy and in combination treatments for hematological cancers and solid tumors; some of these agents are currently in clinical trials...
April 18, 2018: Future Oncology
https://www.readbyqxmd.com/read/29667757/successful-treatment-with-nivolumab-for-lung-cancer-with-low-expression-of-pd-l1-and-prominent-tumor-infiltrating-b-cells-and-immunoglobulin-g
#2
Takayuki Suyama, Yuichi Fukuda, Hiroshi Soda, Daiki Ogawara, Keisuke Iwasaki, Takuya Hara, Masataka Yoshida, Tatsuhiko Harada, Asuka Umemura, Hiroyuki Yamaguchi, Hiroshi Mukae
Little is known about the anti-tumor activity of humoral immunity in lung cancer patients treated with nivolumab, an immune checkpoint inhibitor. Herein, we report a case of lung cancer with 5% expression of PD-L1, in which a partial response to nivolumab was sustained for > 7 months. Immunohistochemical analysis of the metastatic lymph node biopsy specimen showed prominent accumulation of plasma cells and immunoglobulin G. These findings suggest that pre-existing humoral immunity may be worth considering as a candidate therapeutic biomarker of nivolumab in some lung cancer patients...
April 18, 2018: Thoracic Cancer
https://www.readbyqxmd.com/read/29667169/expression-of-scavenger-receptor-marco-defines-a-targetable-tumor-associated-macrophage-subset-in-non-small-cell-lung-cancer
#3
Linnéa La Fleur, Vanessa F Boura, Andrey Alexeyenko, Anders Berglund, Victor Pontén, Johanna Sm Mattsson, Dijana Djureinovic, Johan Persson, Hans Brunnström, Johan Isaksson, Eva Brandén, Hirsh Koyi, Patrick Micke, Mikael Ci Karlsson, Johan Botling
Tumor-associated macrophages (TAMs) are attractive targets for immunotherapy. Recently, studies in animal models showed that treatment with an anti-TAM antibody directed against the scavenger receptor MARCO resulted in suppression of tumor growth and metastatic dissemination. Here we investigated the expression of MARCO in relation to other macrophage markers and immune pathways in a non-small cell lung cancer (NSCLC) cohort (n=352). MARCO, CD68, CD163, MSR1 and programmed death ligand-1 (PD-L1) were analyzed by immunohistochemistry and immunofluorescence, and associations to other immune cells and regulatory pathways were studied in a subset of cases (n=199) with available RNA-seq data...
April 18, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29666811/immune-checkpoint-pathways-in-non-small-cell-lung-cancer
#4
REVIEW
Young Kwang Chae, Ayush Arya, Wade Iams, Marcello Cruz, Nisha Mohindra, Victoria Villaflor, Francis J Giles
Immunotherapy has evolved at a phenomenal pace in cancer therapeutics. This has primarily been fueled by the much perceived necessity to procure an alternative to current standard of care chemotherapy agents, owing to several concerns such as treatment-related toxicity and poor long-term survival associated with the same. The knowledge of various mechanisms involved in regulation of immune response to cancer cells has served a fundamental role in identifying key molecules through which immune cell activity may be modulated...
March 2018: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29666801/current-therapeutic-landscape-for-advanced-gastroesophageal-cancers
#5
REVIEW
Anthony Lopez, Kazuto Harada, Dilsa Mizrak Kaya, Jaffer A Ajani
Treatment of advanced gastroesophageal cancers remains challenging for clinicians, patients, and caregivers alike. Despite considerable research, the therapeutic armamentarium is restricted and hardly personalized. In the first-line setting, trastuzumab with a fluoropyrimidine and platinum agent is the standard-of-care in patients with HER2-positive tumor. For the others, a platinum-based doublet (preferably with oxaliplatin) is recommended. Three-drug cytotoxic regimens should be reserved for exceptional cases where patients have good performance status...
February 2018: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29666732/renal-tubular-acidosis-an-adverse-effect-of-pd-1-inhibitor-immunotherapy
#6
Sandy El Bitar, Chanudi Weerasinghe, Elie El-Charabaty, Marcel Odaimi
Immune checkpoint blockade therapy is gaining popularity among oncologists for treatment of solid and hematologic malignancies. The widespread use of these agents resulted in increasing incidence of renal immune-related adverse events. Reported renal toxicity described so far includes acute interstitial nephritis, minimal change disease, and immune complex glomerulonephritis. We report the case of a 79-year-old female with metastatic non-small cell lung cancer on anti-PD-1 therapy nivolumab. After the 4th administration of nivolumab, the treatment course was complicated with normal anion gap metabolic acidosis...
2018: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29666602/myasthenia-gravis-induced-by-ipilimumab-in-a-patient-with-metastatic-melanoma
#7
Vera Montes, Sandra Sousa, Fernando Pita, Rui Guerreiro, Cátia Carmona
In daily clinical practice, there is a growing number of patients receiving new biological agents used in the treatment of malignancies. Ipilimumab is a fully humanized monoclonal antibody approved for patients with melanoma. It acts as an immune checkpoint inhibitor, binding and blocking cytotoxic T-lymphocyte antigen-4 in order to increase the antitumor immune response. There are several reports of autoimmune responses after its use. A 74-year-old man developed a mild rash and pruritus a few hours after the second infusion of ipilimumab and 24 h after the third dose of ipilimumab, he presented with shortness of breath, proximal limb muscle weakness, and diplopia...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29666300/a-pan-cancer-landscape-of-interactions-between-solid-tumors-and-infiltrating-immune-cell-populations
#8
David Tamborero, Carlota Rubio-Perez, Ferran Muiños, Radhakrishnan Sabarinathan, Josep Maria Piulats, Aura Muntasell, Rodrigo Dienstmann, Nuria Lopez-Bigas, Abel Gonzalez-Perez
PURPOSE: Throughout their development tumors are challenged by the immune system and they acquire features to evade its surveillance. A systematic view of these traits which sheds light on how tumors respond to immunotherapies is still lacking. EXPERIMENTAL DESIGN: Here, we computed the relative abundance of an array of immune cell populations to measure the immune infiltration pattern of 9,174 tumors of 29 solid cancers. We then clustered tumors with similar infiltration pattern to define immune-phenotypes...
April 17, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29666298/delayed-autoimmune-toxicity-occurring-several-months-after-cessation-of-anti-pd-1-therapy
#9
Sagun Parakh, Jonathan Cebon, Oliver Klein
Treatment with anti-programmed cell death protein 1 (PD-1) antibodies has demonstrated clinical efficacy in a whole range of malignancies including advanced melanoma, renal cell cancer, bladder cancer, and non-small cell lung cancer. Immune-related adverse events are a unique side effect of checkpoint regulator therapy including anti-PD-1 antibodies. Treatment-related autoimmunity can occur in any organ system, with the median onset usually within 5-15 weeks from the commencement of therapy, depending on the organ system involved...
April 17, 2018: Oncologist
https://www.readbyqxmd.com/read/29666026/cervical-cancer-state-of-the-science-from-angiogenesis-blockade-to-checkpoint-inhibition
#10
REVIEW
Lindsey E Minion, Krishnansu S Tewari
Vascular endothelial growth factor (VEGF) has emerged as a therapeutic target in several malignancies, including cervical cancer. Chemotherapy doublets combined with the fully humanized monoclonal antibody, bevacizumab, now constitute first-line therapy for women struggling with recurrent/metastatic cervical carcinoma. Regulatory approval for this indication was based on the phase III randomized trial, GOG 240, which demonstrated a statistically significant and clinically meaningful improvement in overall survival when bevacizumab was added to chemotherapy: 17...
March 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29664018/increased-vessel-perfusion-predicts-the-efficacy-of-immune-checkpoint-blockade
#11
Xichen Zheng, Zhaoxu Fang, Xiaomei Liu, Shengming Deng, Pei Zhou, Xuexiang Wang, Chenglin Zhang, Rongping Yin, Haitian Hu, Xiaolan Chen, Yijie Han, Yun Zhao, Steven H Lin, Songbing Qin, Xiaohua Wang, Betty Ys Kim, Penghui Zhou, Wen Jiang, Qingyu Wu, Yuhui Huang
Immune checkpoint blockade (ICB) has demonstrated curative potential in several types of cancer, but only for a small number of patients. Thus, the identification of reliable and noninvasive biomarkers for predicting ICB responsiveness is an urgent unmet need. Here, we show that ICB increased tumor vessel perfusion in treatment-sensitive EO771 and MMTV-PyVT breast tumor as well as CT26 and MCA38 colon tumor models, but not in treatment-resistant MCaP0008 and 4T1 breast tumor models. In the sensitive tumor models, the ability of anti-cytotoxic T lymphocyte-associated protein 4 or anti-programmed cell death 1 therapy to increase vessel perfusion strongly correlated with its antitumor efficacy...
April 16, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29663837/immune-checkpoint-blockade-in-advanced-hepatocellular-carcinoma-an-update-and-critical-review-of-ongoing-clinical-trials
#12
James J Harding
Systemic treatments for advanced hepatocellular carcinoma (HCC) are evolving rapidly and several multi-targeted tyrosine kinase inhibitors have demonstrated a survival advantage over best supportive care. Despite these treatment advances, the majority of HCC patients will progress on tyrosine kinase inhibitor therapy. Preclinical data indicate that interference with immune checkpoint molecules results in HCC growth suppression. Several clinical trials applying monoclonal antibodies to immune checkpoint molecules have demonstrated durable antitumor activity in advanced HCC patients...
April 17, 2018: Future Oncology
https://www.readbyqxmd.com/read/29663063/-treatment-with-pd-1-pd-l1-and-ctla-4-immune-checkpoint-inhibitors-immune-mediated-side-effects
#13
REVIEW
M-O Grimm, H Oppel-Heuchel, S Foller
Immune checkpoint inhibitors are a new standard therapy for advanced or metastatic urothelial as well as renal cell carcinoma. Atezolizumab and Pembrolizumab have been approved for the treatment of cisplatin-ineligible patients with transitional call cancer in the 1st line setting; both antibodies and Nivolumab may also be used after platinum based prior therapy. Regarding renal cell carcinoma approval for 1st line treatment with the combination of Nivolumab and Ipilimumab for patients at intermediate or high risk (IMDC) is currently expected...
April 16, 2018: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/29662663/impact-of-antibiotic-treatment-on-immune-checkpoint-blockade-efficacy-in-advanced-non-squamous-non-small-cell-lung-cancer
#14
Florian Huemer, Gabriel Rinnerthaler, Theresa Westphal, Hubert Hackl, Georg Hutarew, Simon Peter Gampenrieder, Lukas Weiss, Richard Greil
Introduction: Despite durable responses from immune-checkpoint blockade (ICB) in a subset of patients with advanced non-small cell lung cancer (NSCLC), the majority of patients do not derive benefit from this treatment. In this analysis we evaluated the impact of concomitant administration of antibiotics during initiation of ICB on clinical outcome. Methods: Advanced non-squamous NSCLC patients receiving ICB as second- or later line between 2015 and 2017 at our tertiary cancer center in Salzburg (Austria) were included...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29662550/radiotherapy-and-checkpoint-inhibitors-a-winning-new-combination
#15
REVIEW
Eric C Ko, Silvia C Formenti
Immune checkpoint blockade has recently emerged as an important therapeutic approach to the management of malignancies across multiple disease settings. Concomitantly, there has been an increasing appreciation for the role of radiotherapy in eliciting and promoting tumor-directed immune responses. In this review, we discuss the clinical evidence to date on combinations of radiotherapy with immune checkpoint inhibitors, both from the standpoint of safety and efficacy. We highlight important but yet-unanswered questions for this combination approach, as well as their implications for future prospective studies...
2018: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/29662547/pd-l1-expression-testing-in-non-small-cell-lung-cancer
#16
REVIEW
Cristina Teixidó, Noelia Vilariño, Roxana Reyes, Noemí Reguart
In recent years, immunotherapy has revolutionized and changed the standard of care in patients with advanced non-small cell lung cancer (NSCLC). Immune checkpoint inhibitors, fundamentally those that act by blocking the programmed cell death receptor-1 (PD-1) and its ligand the programmed cell death ligand-1 (PD-L1) have emerged as novel treatment strategies in NSCLC, demonstrating undoubted superiority over chemotherapy in terms of efficacy. Several of these immune checkpoint modulators have recently gained regulatory approval for the treatment of advanced NSCLC, such as nivolumab, atezolizumab and pembrolizumab in first-line (only the latter) and second-line settings, and more recently, durvalumab as maintenance after chemoradiotherapy in locally advanced disease...
2018: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/29662546/combination-of-immunotherapy-with-chemotherapy-and-radiotherapy-in-lung-cancer-is-this-the-beginning-of-the-end-for-cancer
#17
REVIEW
Chiara Lazzari, Niki Karachaliou, Alessandra Bulotta, Mariagrazia Viganó, Aurora Mirabile, Elena Brioschi, Mariacarmela Santarpia, Luca Gianni, Rafael Rosell, Vanesa Gregorc
Immune checkpoint inhibitors have significantly improved overall survival with an acceptable safety profile in a substantial proportion of non-small cell lung cancer (NSCLC) patients. However, not all patients are sensitive to immune checkpoint blockade and, in some cases, programmed death 1 (PD-1) or programmed death ligand 1 (PD-L1) inhibitors accelerate tumor progression. Several combination strategies are under evaluation, including the concomitant or sequential evaluation of chemotherapy or radiotherapy with immunotherapy...
2018: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/29662544/sunitinib-in-the-treatment-of-renal-cell-carcinoma-an-update-on-recent-evidence
#18
REVIEW
Mimma Rizzo, Camillo Porta
Sunitinib is a multitarget tyrosine kinase inhibitor endowed mainly by antiangiogenic effects, although an indirect inhibitory effect on tumor growth and, more recently, a complex activity on antitumor immune response has been described. From approval by the US Food and Drug Administration (FDA) in January 2006, sunitinib represents a key molecule in the treatment of metastatic renal cell carcinoma (mRCC) due to the peculiar molecular pathogenesis of this neoplasm. Over the past 10 years, clinical trials and real-world experiences helped clinicians to understand how, when and for how long to use sunitinib...
August 2017: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/29661736/loss-of-pd-l1-sp-142-expression-characterizes-renal-vein-tumor-thrombus-microenvironment-in-clear-cell-renal-cell-carcinoma
#19
José I López, Rafael Pulido, Charles H Lawrie, Javier C Angulo
Immunotherapy is a promising tool in the treatment of patients with advancer renal cancer, in particular the blockage of immune checkpoint inhibitors. Clear cell renal cell carcinoma is an example of heterogeneous neoplasm and this particular characteristic is responsible of many therapeutic failures so far. Since variations in the local microenvironment across a tumor may conditionate the effect of this new therapy, a deeper knowledge of this issue seems advisable for any treatment success. We have analyzed the PD-L1 (SP142) expression in three different areas in the tumor and in two areas in the renal vein/caval thrombi in 39 advanced clear cell renal cell carcinomas to determine the extent and potential clinical significance of this regional variability...
March 24, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29661225/lymphocyte-subset-expression-and-serum-concentrations-of-pd-1-pd-l1-in-sepsis-pilot-study
#20
Julie K Wilson, Yuan Zhao, Mervyn Singer, Jo Spencer, Manu Shankar-Hari
BACKGROUND: Sepsis remains a major cause of mortality in critical care, for which specific treatments are lacking. The dysregulated response to infection seen in sepsis includes features of lymphocyte dysfunction and exhaustion, suggesting that immune-stimulatory therapy may improve outcomes in certain patient groups. Monoclonal antibodies targeting checkpoint molecules, such as programmed-death 1 protein (PD-1) and its ligand PD-L1, have shown success in stimulating the immune response in patients with cancer, and are being considered for future sepsis trials...
April 17, 2018: Critical Care: the Official Journal of the Critical Care Forum
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